In times of change, the learners inherit the earth, while the learned find themselves beautifully equipped to deal with a world that no longer exists.
One should forgive one's enemies, but not before they are hanged.
When a professor insists computer science is X but not Y, have compassion for his graduate students.
当教授坚持说计算机科学是X但不是Y时，请对他的研究生抱有同情心。
法律实证主义强调法律与道德的分离。